Elastic tire



oct. 16, 1923. :#zwms F. E. CRAHG ELASTIC TIRE Filed April l, 1922 @WMMLYW Athan the thickness of the Wire. is therefore adapted to slip on ther shoe Without oh! struction to the slipping'` niovenient, which would he causedii1 one of the said outer cors ners projected outward farther than the other. o Y

prefer to niakethespring of chromium vanadium steel wire. The size oia the spring and the thickness oi'` the wire Will depend on vthe size of the shoe and the weightof the vehicle. TheY ends ofthev spring may be united by vveldingor otherwise, to' i'orrn a continuous annular helix.

l claim Y Y ln combination' a Vtire shoe or carcass adapted to be opened andcontracted, and an annular cushioning'l member ycomposed of' square WirefheliCaIlyeOled, fixed, and

united atits ends to 'forni a continuous annular helix `in Whieh-the convolutions 'are' 4substantially radial to the Center off the an-v nulus, are abutted together at their inner portions' to form a practically continuous inner face, and diverge Jfrom said inner 'face 'tol forni an outer 'face contacting with the tread portion of the shoe, and interrupted by tapering spaces between the eonvolutions maintained by the alouttingi` of the inner portions atless width than the thickness oi thefivire7 Whereoy said outer face is prevented from indenting the innerl face of the shoe, thel transversely flat outer'sides of the eonvolutions being maintained parallel with the inner 'face of the shoe by the radial ar'- rangenent of the convolutions, so that said sides collectively constitute ahelioal runner;

adapted to creep on the inner face of the shoe7 and thereby distribute Wear. v

In testimony whereof, l have alixed kmy signature. i

g rnnDnnioK in; onine.

Certificate of Correction.

It is hereby certified that in Letters Patent No. 1,470,913, granted October 16, 1923, upon the application of Frederick E. Craig, of Lawrence, Massachusetts, for an improvement in Elastic Tires, an error appears in the printed specification requiring correction as follows: Page 2, line 24, in claim, for the Word ixed read flexed; and that the said Letters Patent should be readwith this correction therein that the same may conform to the record of thecase in the Patent Olice.

Signed and sea-led this' 6th day of November, A. D., 1923.

[SEAL] KARL FENNING,

Acting Oomtmzssoner of Patents. 

